Sending Progress

- improved progress bar styles (with completed status)
- add pause/resume buttons
- fixed method case in settings.mta for MailPoet & SMTP Providers
- fixed parsley dependency
- added validation on from name & address on step 3

lib/Models/SendingQueue.php

@@ -9,4 +9,27 @@ class SendingQueue extends Model {
   function __construct() {
     parent::__construct();
   }
+
+  function pause() {
+    if($this->count_processed === $this->count_total) {
+      return false;
+    } else {
+      $this->set('status', 'paused');
+      return $this->save();
+    }
+  }
+
+  function resume() {
+    if($this->count_processed === $this->count_total) {
+      return $this->complete();
+    } else {
+      $this->set_expr('status', 'NULL');
+      return $this->save();
+    }
+  }
+
+  function complete() {
+    $this->set('status', 'completed');
+    return $this->save();
+  }
 }